Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever loves for the sake of Allah, hates for the sake of Allah, gives for the sake of Allah, and withholds for the sake of Allah, has perfected his faith."